. >> the storm is gaining strength, the tighter this thing gets, the more energy it holds and eventually that will hit the california coastline. right now the frontal boundary is moving closer to the coast and that's helping intensify our rainfall, at least over the next three to four hours. you can see this heavy zone of rain to the south, moving from the south to the north. so over the next two to three hours, we'll see this move our way. right now 3/4 of an inch per hour that will be hitting parts of the bay area. not at midnight. a few spotty showers. but 2:00, 3:00, 4:00, some of the heavier rain moves across and the entire bay area will be under this severe weather risk. a possibility of isolated thunderstorms that could produce hail. the other added component is the wind. meteorologist rob mayeda, you're positioned in the perfect spot to track this wind overnight. >> reporter: we've been watching this wind pick up and wind gusts within the last half hour approaching 30 miles per hour. this is the reason why we think the wind also continue to accelerate overnight. this is a unique